Prostate Enlargement is also known as Benign Prostatic Hyperplasia (BPH) and erectile dysfunction (ED), these are different problems. Both the problems increase with age and interconnect with each other as due to BPH erectile dysfunction may also occur. So a person can be affected by both the diseases and facing the symptoms of both diseases. So it is important to identify or distinguish whether you are suffering from one disease or both. Here are some points mentioned below by which you can easily diagnose yourself. Benign Prostatic Hyperplasia (BPH) causes problems during urination while erectile dysfunction (ED) is a sexual problem.